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Jan. 2018
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Harbeth Monitor 40.1 specific

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  • #46
    Stand height for M40.1

    Hi Charo,

    If you are referring to the original M 40 speakers, they were placed on much taller stands to bring the cabinet higher off the floor and thin out the Bass. Some folks had them on 23" stands and were using room correction in the system also. (Remember this speaker was mostly used in recording studios where it was mounted higher from the floor to better accommodate the controller sitting behind the control desk).

    However the new M 40.1 is redesigned to work way much better in domestic environments and can now be placed on shorter stands. (Also very much more room friendly in placement to wall boundaries).

    So if you are using the original model, don't go below that 17" Sound Anchor stand model you refer to and most important if you are on hardwood floors as this will add to Bass reflection.

    Noel.

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    • #47
      Stand height for M40.1

      Appreciate for your response.

      I am thinking of the stand heights appropriate for the new M40.1 as I am planning to get a pair

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      • #48
        Stand height for M40.1

        Sorry to ask the question again. I have to come to a decision soon on the stand height, 14" or 17". The floor is of marble type. I reckon the bass reflection is even worse than hardwood floor?

        Should 14" or 17" be more appropriate for M40.1?

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        • #49
          Re: Stand height for M40.1 - simple calculations

          Unfortunately, this question can not be reliably answered by other users. You have to do some basic research yourself, with the help of an assistant.

          The stand height that suits me (I am 1.84m tall) when sitting upright on my couch, without small children or animals to worry about and free from cosmetic considerations may not suit you at all. It would probably be too tall for you. But if you are taller than me, and you sit in an office chair then you would probably pick a taller stand than me - or if you are shorter, and you prefer to curl up on a bean bag on the floor, you'd probably select a shorter stand. There are so many factors to consider. What I would do is this to gather some basic data: sit in your normal seat, in your normal posture and ask your assistant to measure how far your ears are above the floor in centimetres. Let's call that number (E). The M40.1s tweeter is 66 cms. above the bottom of the cabinet, as it would sit on the top surface of the stand. Let's call that number (T). Be careful not to mix up inches and cms.

          Now we do a simple subtraction: we take away the M40.1 cabinet bottom to tweeter height (T) from the height of your ears above the floor (E) and we have the theoretically optimum stand height. The maths is ....

          (E) - (T) = (S) where (S) is stand height in cms.

          Divide (S) by 2.54 and you have the stand height in inches.

          NOTE: This is the theoretical height which will put the M40.1 tweeter level with your ears. It is a starting guide only. You must consider all factors such as the presence of children before you finalise this. Of course, if the stand has a tilt function, then you can reconsider the situation by tilting the speaker rather than just increasing/decreasing stand height to put the tweeter level with your ears.

          Noel (Skylan) says that his stands at the CES/Harbeth room were 16" (about 41cms). The couch-seat was very soft and I sank down into the cushions. This placed my ears a little below tweeter axis.

          As for the floor of hardwood or marble I don't think it would make any difference to the sound waves. Turn down the lights in your room. Sitting in your hot spot, hold a torch up by your ear and point it to a point on the hard floor somewhere between you and the speakers. You will find a reflection from the floor onto the speaker's bass unit. That's the place on the floor to put your rug or other absorber for maximum effect.
          Alan A. Shaw
          Designer, owner
          Harbeth Audio UK

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          • #50
            Re: Harbeth Monitor 40.1 specific

            Thanks Alan for the more quantitative guide on stand height.

            In plain, it is the principle that the ear level is ideally at the same height level as the tweeter of M40.1 on the stand and, it is dependent on what I sit on. Also, in your previous posts in M40 thread, you once mentioned M40.1 is not fussy about stand height as long as it is between 12" - 20".

            Btw, my height is no less or no more than yours.

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            • #51
              Re: Harbeth Monitor 40.1 specific

              Well 12-20" is a significant range. That would be a very extreme situation and will not give me great results at either end of that range. But again, it critically depends upon you - your height, chair etc.

              I guess - and this is only a guess - that for moderately tall people like you/me with soft modern chairs probably a good stand height is in the range 14-18". But you really should make some basic measurement to confirm or not my guess.
              Alan A. Shaw
              Designer, owner
              Harbeth Audio UK

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              • #52
                Skylan stands for M40.1

                Here is a picture of two great stand designers. Holding the M40.1 in his arms is Noel from Skylan. Skylan stands are of lightweight construction, and as shown here at the 2008 CES show, fitted with Tim Ryan's 'kilt' to match the grille cloth of the M40.1 itself.

                As you can see, Noel's stands are more than capable of taking his weight plus the M40.1!

                >
                Attached Files
                Alan A. Shaw
                Designer, owner
                Harbeth Audio UK

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                • #53
                  Re: Skylan stands for M40.1

                  Oh, could you hold your M40-1 like that, Alan?

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                  • #54
                    M40.1 - NAIM thread

                    I rarely look there, but had a peek on the Naim forum (strange as I sold their ranges for twenty five years...). There's a thread concerning someone who heard the 40.1 driven by a Townshend source and a SIX PACK (6x power amps) Naim system with multiple power supplies etc.. he was nearly beside himself with delight and glee... (I nearly said something else but thought to spare your blushes...... ;) )

                    I'm getting rather excited at the prospect of hearing them myself.......

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                    • #55
                      M40.1 - NAIM thread

                      Originally posted by DSRANCE View Post
                      I rarely look there, but had a peek on the Naim forum (strange as I sold their ranges for twenty five years...). There's a thread concerning someone who heard the 40.1 driven by a Townshend source and a SIX PACK (6x power amps) Naim system with multiple power supplies etc.. he was nearly beside himself with delight and glee... (I nearly said something else but thought to spare your blushes...... ;) )

                      I'm getting rather excited at the prospect of hearing them myself.......
                      Wow, i'd love to listen to this setup man! Must be in the goosebumps territory.

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                      • #56
                        M40.1 - NAIM thread

                        Could someone provide me with the link so we can have a look at this story before publishing here please? Thank you.
                        Alan A. Shaw
                        Designer, owner
                        Harbeth Audio UK

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                        • #57
                          Re: Harbeth Monitor 40.1 specific

                          http://forums.naim-audio.com/eve/for...5/m/3512984217

                          Here you go...

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                          • #58
                            Re: M40.1 - NAIM thread

                            Alan, could you confirm how many speaker binding posts are on the new Monitor 40.1. From this picture it would seem only two. If this is how the production version is set up one wonders how it could be driven by a SIX PACK.

                            http://harbeth.co.uk/usergroup/attac...5&d=1197151654

                            Don
                            West Coast Audio

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                            • #59
                              Re: M40.1 - NAIM thread

                              Hello Don,

                              I've made some enquiries following your message as to the whereabouts of the (only) pair of M40.1 that is in the USA during this past week. I conclude that the comment on the NAIM link is in fact a reference to a user who has listened to and is commenting on the Monitor 40, not Monitor 40.1.

                              You are absolutely correct that the production Monitor 40.1 has one single pair of binding posts, not the three pairs of the original Monitor 40. This reflects the fact that the M40.1 is significantly easier to drive and requires much more modest amplification. In fact, at the THE/CES 2008 show, we used throughout the excellent DNM power amp, rated at 23+2W (I believe) which filled our busy room with sweet sound. So, as for 6 monoblocks hinted at in the NAIM posting - completely unnecessary - but clean power in careful hands is always thrilling!
                              Alan A. Shaw
                              Designer, owner
                              Harbeth Audio UK

                              Comment


                              • #60
                                Re: M40.1 - NAIM thread

                                They'll be getting their Nait integrateds ready then.......

                                Seriously, I hope the 40.1 proves to be at least as successful as the previous one. There's "something" about good big bass units (to put it crudely) - this sense of ease, especially at low volume levels (ok Alan, I know the smaller Harbeth models do this too, but I think you know where I'm coming from...lol).

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